MESON Chess Problem Database

Problem Display
PID: 206474 (5B2/6P1/Q5rp/1P2k1pb/4P1p1/6K1/B1P5/4R3 w - - 0 1)

Gross, Izidor

Zagreber Tagblatt, 1925

5B2/6P1/Q5rp/1P2k1pb/4P1p1/6K1/B1P5/4R3

#2

9 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Qxd6#
    • 1...Rxg7
      • 2.Bxg7#
      • 2.Qd6#
  • Tries
    • 1.Qa3?
      • threat
        • 2.Qb2#
        • 2.Qc3#
      • 1...Kd4
        • 2.Qb2#
        • 2.Qc5#
      • 1...Kf6
        • 2.Qb2#
        • 2.Qd6#
        • 2.Qe7#
        • 2.Qc3#
      • 1...Rd6
        • 2.Qxd6#
      • 1...Rc6!
    • 1.Qc6?
      • threat
        • 2.Qc3#
      • 1...Kd4
        • 2.Qc5#
      • 1...Rd6
        • 2.Qxd6#
      • 1...Rxc6!
    • 1.Qxg6?
      • threat
        • 2.Qd6#
      • 1...Kd4
        • 2.Qf6#
      • 1...Bxg6!
  • Keys
    • 1.Be6!
      • 1...Kd4
        • 2.Qa1#
      • 1...Kf6
        • 2.e5#
      • 1...Rxe6
        • 2.Qa1#
      • 1...Rxg7
        • 2.Bxg7#
      • 1...Rf6
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(e);N_GUARD::QAB1(G),XR(e)
  • Tries
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • R(e);N_GUARD::QAB1(G),XR(e)
      • Refutation
        • R(e);
    • Try
      • Q(G);
      • Threat
        • QAB(G)
      • Vars
        • K(b);S_FLIGHT::QAB1(G)
        • R(e);N_GUARD::QAB1(G),XR(e)
      • Refutation
        • R(e);XQ(G)
    • Try
      • Q(G);XR(e)
      • Threat
        • QAB1(G)
      • Vars
        • K(b);S_FLIGHT::QAB(G)
      • Refutation
        • B(d);XQ(G)
  • Actual
    • B(B);
    • Vars
      • K(b);S_FLIGHT::QAB(G)
      • K(b);OGATE,S_FLIGHT::P(E)
      • R(e);SBLOCK,XB(B)::QAB(G)
      • R(e);OGATE,XP(H)::B(I),XR(e)
      • R(e);SBLOCK::QAB1(G)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).